Complete the tables that follow to describe the memory addresses and values of each variable when the last statement in the ChangePasscode function is performed
Complete the tables that follow to describe the memory addresses and values of each variable when the last statement in the ChangePasscode function is performed
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question
Complete the tables that follow to describe the memory addresses and values of each variable when the last statement in the ChangePasscode function is performed (right before the function exits). Note:
Transcribed Image Text:Symbol Table (complete the memory addresses by providing their last 2 digits)
Variable Name Scope
passcode
main()
verify_passcode main()
new_passcode main()
passcode
Ox7ffd151a1d0c
ChangePasscode() int
verify_passcode Change Passcode() int
new_passcode Change Passcode() int
Ox7ffd151a1d 54
Note: You only need to fill in the last 2 digits of the address. The rest has been provided for you.
0x7ffd151a1d10
0x7ffd151a1d14
Memory Visualization (provide the value stored in the corresponding memory address)
0x7ffd151a1d54
0x7ffd151a1d58
Ox7ffd151a1d5c
Value
456789
112233
Type
int
112233
int
int
main()
Memory address*
Change Passcode()
0x7ffd151a1d5c
Ox7ffd151a1d58
Ox7ffd151a1d54
Ox7ffd151a1d5c
Ox7ffd151a1d58
Transcribed Image Text:#include <iostream>
// Changes the passcode to new_passcode if
// verify_passcode matches the old passcode.
bool Change Passcode (int& passcode, int verify_passcode,
int new_passcode) {
passcode) {
if (verify_passcode
passcode =
return true;
}
} else {
return false;
int main() {
int passcode
int verify_passcode
int new_passcode
new_passcode;
==
= 112233;
=
}
return 0;
=
0;
std::cout << "Please enter old passcode: ";
std::cin >> verify_passcode; // user enters 112233
std::cout << "Please enter new passcode: ";
std::cin >> new_passcode;
// user enters 456789
bool changed_passcode
0;
=
Change Passcode (passcode,
if (changed_passcode) {
std::cout << "Passcode changed.";
} else {
std::cout << "Passcode remains the same.\n";
Output:
Please enter old passcode: 112233
Please enter new passcode: 456789
Passcode changed.
verify_passcode,
new_passcode);
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